package photomanager;
import java.io.FileWriter;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* This class provides support to the Photo and PhotoManager classes.
* Do not modify this class.
*
* @author UMCP CS Department
*
*/
public class Utilities {
/**
* Returns a long value corresponding to the number of seconds since 1970 for
* the specified string. The string format is "MM/dd/yyyy-HH:mm". For example,
* "10/18/2020-17:10"
*
* @param date string representing date
* @return long value representing seconds since 1970
*/
public static long getDate(String date) {
long answer = -1;
try {
answer = (new SimpleDateFormat("MM/dd/yyyy-HH:mm")).parse(date).getTime();
} catch (ParseException e) {
System.err.print(e.getMessage());
}
return answer;
}
/**
* Returns string representing the date associated with the number of seconds
* since 1970 specified in the parameter
*
* @param date
* @return string with date
*/
public static String getDate(long date) {
return new Date(date).toString();
}
/**
* Writes a string to a file
*
* @param filename filename to write to
* @param data data(string) to write to file
* @return true if write completed; false otherwise.
*/
public static boolean writeStringToFile(String filename, String data) {
try {
FileWriter output = new FileWriter(filename);
output.write(data);
output.close();
} catch (IOException exception) {
System.err.println("ERROR: Writing to file " + filename + " failed.");
return false;
}
return true;
}
/**
* Generate an HTML5 Page with the body specified in the parameter.
* @param filename name of file to create.
* @param body HMTL body.
*/
public static void generateHTMLPageWithBody(String filename, String body) {
String page = "\n";
page += "\n";
page += "\n";
page += "PhotoManager Page\n";
page += "\n";
page += "\n";
page += "\n";
page += body + "\n";
page += "\n";
page += "\n";
writeStringToFile(filename, page);
System.out.println(filename + " has been created (Refresh Eclipse project to see the file).");
}
/**
* Driver illustrating functionality of Utility methods.
*
* @param args
*/
public static void main(String[] args) {
String date1 = "01/01/1970-17:10", date2 = "10/19/2020-17:10";
System.out.println("Integer for " + date1 + " is: " + getDate(date1));
System.out.println("Integer for " + date2 + " is: " + getDate(date2));
/* Creating HTML to display image present in umcpImages */
String htmlPage = "SamplePage.html", body = "Sample Page
";
body += "![](\"umcp/college1.jpg\")
";
generateHTMLPageWithBody(htmlPage, body);
System.out.println("Sample page in file " + htmlPage);
}
}